Home / 30,971.28-42,741.36-17,544.72

Finding the Fourth Proportional to 30,971.28, 42,741.36 and 17,544.72

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Solution

The fourth proportional to 30,971.28, 42,741.36 and 17,544.72 is: 24,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.28 : 42,741.36 = 17,544.72 : x
  2. Step 2: Convert to fraction form
    30,971.28/42,741.36 = 17,544.72/x
  3. Step 3: Cross multiply
    30,971.28x = 42,741.36 × 17,544.72
  4. Step 4: Simplify right side
    30,971.28x = 749,885,193.62
  5. Step 5: Solve for x
    x = 749,885,193.62/30,971.28
  6. Step 6: Final answer
    x = 24,212.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.